In January, 2004, the United States successfully launched “Spirit”, a Mars Exploration Rover, _____ a new milestone in the history of mankind.
| A．it marked | B．marking | C．marked | D．to mark |
相关试题
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The teacher had the students __________ all the words they didn’t know.
| A．looked up | B．looking in | C．look up | D．look at |
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. Did you notice the little boy __________ away?
| A．took the candy and run | B．take the candy and run |
| C．taking the candy and run | D．who taking the candy running |
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The work should be given to ________ you think can finish it ahead of time.
| A．who | B．whom | C．whoever | D．whomever |
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. His family, which _______ rather a large one, ______very fond of their old house.
| A．were, were | B．was, were | C．were, was | D．was, was |
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